feat(arkserver): updated default map comment (#3285)

Added TheCenter, Extinction, Valguero_P and Genesis as default maps.

lgsm/config-default/config-lgsm/arkserver/_default.cfg

@@ -13,7 +13,7 @@ ip="0.0.0.0"
 port="7777"
 queryport="27015"
 rconport="27020"
-# Default Map: TheIsland, Ragnarok, CrystalIsles, Aberration_P, ScorchedEarth_P
+# Default Map: TheIsland, Ragnarok, CrystalIsles, Aberration_P, ScorchedEarth_P, TheCenter, Extinction, Valguero_P, Genesis
 defaultmap="TheIsland"
 altsavedirectoryname="${defaultmap}"
 maxplayers="70"